The constitution of Bhutan states that a minimum of

Bhutan's total land shall be maintained under forest cover for all tim

e. This is to ensure the conservation of the country's rich biodiversity and resources for future generations. The government of Bhutan has also implemented various policies and programs to promote sustainable forest management and protect its natural environment. Through these efforts, Bhutan has been able to maintain a high percentage of forest cover, making it one of the most environmentally friendly countries in the world.